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Old 03-04-2013, 09:40 AM
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Originally Posted by TY@TEAMTEKIN
There will be a few of both but yes, there is a Pro4HD 1850kV 2Y that will be part of the group.
All I can say is woooo-hoooo
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Old 03-04-2013, 09:42 AM
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When are the HD motor supposed to hit the market it's been a while since I last heard that they were just around the corner?
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Old 03-04-2013, 09:48 AM
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Originally Posted by UK.hardcore
Tekin site shows 18.5 mm for both.

Some good info coming up, lets keep going...



I'm thinking 4s 3300 mah because i would like to have at least 12 minutes runtime.
I could have sworn that the Tekin Tech Guy said that the ROC rotor was 19mm and the Pro4 was 18 or 18.5. That was a while ago though.

Stormer shows 18.5 for the Pro4 and 19 for the ROC as well. I'm sure Randy can clarify.
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Old 03-04-2013, 10:00 AM
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18.5 guys...
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Old 03-04-2013, 10:35 AM
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Originally Posted by TY@TEAMTEKIN
There will be a few of both but yes, there is a Pro4HD 1850kV 2Y that will be part of the group.
Cool. Timeframe for this to release?
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Old 03-04-2013, 12:22 PM
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Originally Posted by TY@TEAMTEKIN
We are planning on some lower kV Pro4 and Pro4 HD motors to accomodate 4S setups. I'll have more info soon, but these will be a better choice than a ROC with 5mm rotor swap.
Simply awesome.
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Old 03-04-2013, 12:48 PM
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Originally Posted by UK.hardcore
I have a truck fetish, that's why.

Matthew, do you have any more specific info? gearing, runtime, temps?
I ran a 16 tooth and could make a 10 minute main with a Venom 4s 2500mah 50C pack. No specific temps but I could hold my hand on the motor.
I also used to run a Neu 1509 1800kv motor on my Losi SCTE with the same battery, could get 12 minutes before cutoff (3.5v a cell). That motor was 135 at the end of 12 minutes. Bigger diameter motor so not a direct comparison but still good info.

Originally Posted by nv529
I understand it will be heavier. You're already "bending the rules" so why not use the T8 motor? Think of it as "light weight 8th scale" it should be perfect.
Obviously this is a gray area and subject to opinion, but I feel that by running an 8th scale motor you've gone past bending the rules. If we want to keep calling this a 10th scale class then some things need to stay (relatively) small. Motors and battery dimensions are the two biggies.
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Old 03-04-2013, 12:55 PM
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I don't want my HV addiction to cause a severe weight penalty.
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Old 03-04-2013, 01:50 PM
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I'll let you guys know more as soon as I can, they will be available soon.
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Old 03-05-2013, 07:33 AM
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Originally Posted by TY@TEAMTEKIN
We are planning on some lower kV Pro4 and Pro4 HD motors to accomodate 4S setups. I'll have more info soon, but these will be a better choice than a ROC with 5mm rotor swap.
What about these new Pro4 motors make them a better choice than a ROC?
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Old 03-05-2013, 07:47 AM
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Originally Posted by UK.hardcore
I don't want my HV addiction to cause a severe weight penalty.
A 3400mah 4 cell won't weigh any more than a 6800mah 2 cell(in fact it will be the same size).... and should run at least as long, if not longer.
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Old 03-05-2013, 08:17 AM
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Originally Posted by BillyT.
A 3400mah 4 cell won't weigh any more than a 6800mah 2 cell(in fact it will be the same size).... and should run at least as long, if not longer.
I was responding to the T8 motor recommendation.

I know the pack i will put in the truck is as close as possible to the weight of the servo esc and motor.
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Old 03-23-2013, 01:45 PM
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I was thinking about the weight thing and the suggestion of 8th scale electronics (motor, battery) and had a simple idea about keeping the class "10th scale". Basically, it's just using the size rules already in place for the motors and using the 2s lipo pack size rule but removing the voltage limit. Most 2s packs are already 2s2p so making them a 4s1p is a no-brainer. A-Main already does this with their Protek packs (2s 7000 and a 4s 3500) so it can be done.
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Old 03-24-2013, 03:43 PM
  #29  
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Originally Posted by Matthew_Armeni
I was thinking about the weight thing and the suggestion of 8th scale electronics (motor, battery) and had a simple idea about keeping the class "10th scale". Basically, it's just using the size rules already in place for the motors and using the 2s lipo pack size rule but removing the voltage limit. Most 2s packs are already 2s2p so making them a 4s1p is a no-brainer. A-Main already does this with their Protek packs (2s 7000 and a 4s 3500) so it can be done.
+1; a weight and/or size limit is all that we need. Of course some companies would need to catch up with motors and ESCs, and put stronger HV BECs in there.
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Old 03-25-2013, 08:35 PM
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Originally Posted by Matthew_Armeni
I was thinking about the weight thing and the suggestion of 8th scale electronics (motor, battery) and had a simple idea about keeping the class "10th scale". Basically, it's just using the size rules already in place for the motors and using the 2s lipo pack size rule but removing the voltage limit. Most 2s packs are already 2s2p so making them a 4s1p is a no-brainer. A-Main already does this with their Protek packs (2s 7000 and a 4s 3500) so it can be done.
That's about the most sensible thing anyone has said on this subject.
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